Can-washing machine



Aug. 21, i923. mams@ H. D. LATHROP CAN WASHING MACHINE Filed Nov. 24 1920' 9 Sheets-Sheet 1 H. D. LATHROF CAN WASHING MACHINE Filed NOV- 24 1920 9 Sheets-Sheet 2 Aug. 21

H. D. LATHRQP CAN WASHING MACHINE Filed Nov. 24 1920 Sheets-.Sheet 5 Ms. ima/ey Aug. 21, 1923. 1,465,734

H. D. LATHROP CAN WASHING MACHINE File N0. 1920 9 Sheets-Sheet 4 I ,f i 1 l te* ll y/imml i f/l MIEI/Hl f I .L u u /-gt ifZf/zafasef: A Jaya/z pf Aug. 21, 1923.

H. D. LATHROP CAN WASHING MACHINE Filed NOV. 24 1920v 9 Sheets-Sheet 5 jf? Vle/Maf Aug. 21

H. D. LATHROP CAN WASHING MACHINE Filed Nov. `24:

1920 9 Sheets-Sheet 6 Aug. 21, 1923. ,465,734

H. D. LATHROP GAN WASHING MACHINE Filed Nov. 24 1920 9 Sheets-Sheet 7 ug. 2l, 1923.

H. D. LATHROP GAN WASHING MACHINE Filed Nov. 24 1920 9 Sheets-Sheet 8 Aug. 21, 1923.

` 1,465,734 H. D. I ATHROP CAN WASHING MACHINE Filed Nov. 24 1920 9 Sheets-ST5? et 9 P11335? F JID h Patented Aug. 21, 1223.

HARRY D. LATHRCP, AOF CHICAGO, ILLINOIS.

CAN-WASHING' MACHINE.

Application filed November 24, 1920. Serial No. 426,258.

To all whom t may concern:

Be it known that I, HARRY D. LATHROP, a citizen of the United States, and a resident of the cit of Chicago, 'county of Cook, and

5 State of llinois, have invented certain new and useful Improvements in Can-Washing Machines, of -which the following is a speclfication.

My invention relates to can washing machines, and it'has `for its principal object the provision of a new and improved arrangement of vparts in a machine of this character byv which cans may be handled rapidly and easily and may be thoroughly cleaned and sterilized and delivered ready for use.

Other .objects will appear hereinafter.

The invention consists in the combination and arrangements of parts hereinafter described and claimed.

The invention will be best understood reference to the acompanying drawings forming a part of this specification, and in which,

Fig. 1 is an end view of my improved machine; Y

Fig. 2 is a side view of the receiving end portion of the machine shown in Fig. 1 as seen from the left in said figure;

Fig. 3 is a side view of the deliverygend portion of the machine shown in Fig. 1, being a continuation of Fig. 2; a

Fig. 4 is a side view of the'receiving end portion of the machine as seen from the right in Fig. 1;

Fig. 5 is a side view of the delivery end portion of the machine shown in Fig. 1, beinga continuation of Fig. 4; Fig. 6 is a horizontal sectional View, being taken substantially on line 6-6 of Fig. 1;

Fig. 7 is a top plan view of the delivery end portion of my improved machine;

f Fig. 8 is an end view of the lower portion of my machine yas seen from the left Fig. 3.

Fig. 9 is a vertical cross section taken on line 9-9 of Fig. 8;

Fig. 10 is an enlarged detail view, showing the arrangementk of the. operating means for one of the valves; i

Fig. 1 1 is a horizontal sectional view taken substantially on the line 11-11- of Fig. 3; v

Fig. 12 is a` vertical cross Section taken 011 line 12-12 of Fig. 11;

byv

Fig. 13 is substantially a horizontal section taken on line 13-13 of Fig. 2;

Fig. 14 is a top plan view of certain of the parts at the receiving end portion of my improved machine; and

F ig. 15 is a vertical cross section taken substantially at line 15-15 of Fig. 14.

Referring to the several figures of the drawings, in which corresponding parts are indicated by the same reference characters,

20 indicates the frame work of my improvedmachine supporting two slideways extending longitudinally thereof, upon one of4 which a lurality of cans are ada ted lto be supported in inverted position, an upon the other of' which a plurality of covers are adapted to be supported in position toroll on edge therealong, in the construction shown both of said slidewa s being inclined downwardly from the recelving end of the machine to the delivery end thereof. Means is provided for giving a plurality of cans and covers a step-bystep movement along the slideways, a can and its cover being kept in position side by side in their movement through the thel machine. Means is provided at the delivery end for turning the can into upright position so that an operator at at the receiving end is enabled to place in position on i can the cover which is delivered slightly ahead of the can. .Means is provided adapted to act upon the cans and the covers in their intermittentv movement through the machine for cleaning the cans, means being provided for controlling the movementof the parts through the machine for insuring that such parts shallbe in propf er position during the successive steps of the cleaning operation.v

As is best shown in Fig; 13, the slideway for the cans' comprises a pair of angle irons 21 and 22 spaced apart in suitable position to support a can 23 of the` ordinary tpe used for'milk or cream, angle irons24 ari- 25 VAbeing spaced a short distance above y'the angle irons 21 and 22 for'holding the cans 23" from tipping out of their upright .position. A small platform 26 is provided at the upper ends ofthe slide bars so arranged that a can placed thereon is ada ted to be slid forward directly upon the slidbway. i 1.

' The vmeans for advancing the cans "from the platform 26 alongA the'y slideway comprises a bar 27 which is slidable longi- Y tudinally ofthe machine and is also adapted to be rocked with respect thereto. The slide bar 27 is provided with a plurality of arms 28 in spaced relation thereon, the spacing of the arms 23 corresponding to the placing of the cleaning devices along the machine as hereinafter' described. l\' eans is provided for manipulating the slide bar 27 for moving the cans along the slideway. lVith a plurality of cans in position on the slidcway with the arms 23 extending laterally fromv the bar 27, when it is desired to give the cans a forward movement the bar 27 is given a partial rotation for turning the arms 28 into upright position so as to clear the cans 23'. The bar 27 with lthe arms 28 is thereupon moved toward thel receiving end of the machine for bringing each arm 28 opposite the rear edge portion of the next succeeding can. when the bar 27 is again turned so as to bring the arms 28 into position behind the respective cans. The bar is then moved forward, serving to give all of the cans aA one-step sliding movementl down the slideway. As will be readily understood, when it is desired to give the cans the succeeding one-step movement, this result is attained in the same manner as that just described, each of the arms 28 in the next operation engaging the next following can. y

The means forgiving the bar 27 the operative movement as above described comprises a sleeve 29 which is slidably mounted in a bracket 30 carriedby the frame work 20 as is best Ashown in Fig. 2. The sleeve 29 serves as a support for the forward end of the bar 27, being connected thereto by means of a pin 31 carried by the bar 27 working in a slot 32 in the sleeve, as is clearly shown in Fig. 2. When the sleeve 29 is rotated by means of a handle 33 on its rear end, the bar 27 is simultaneously rotated to the same extent. When the sleeve 29 is drawn backward, however, the bar 27 is not started in its backward movement until the end of the slot 32V comes in contact with the pin 31, after which the sleeve and the bar move together until the movement is stopped by the contact of a finger 34 with. the bracket 30. The position of the finger 34 is such as to limit the backward movement of the bar 27 to correspond with the spacing of the cans 23 as above described, the forward movement of the bar being limited by the engagement of the handle 33 with the bracket 30 as is shown in Fig. 2. A counterweight 35 is mounted on the bar 27 to balance the weight of the arms 28 as is shown in Fig. 3.

Means is provided for limiting the forward movement of the cans 23 serving to act positively for stopping the cans in position for the proper operation of the cleaning mechanisms. This stopping means comprises a longitudinally extending rock shaft 36 (see Fig. 13) which is provided with a pluturned up into 37 which are adapted to-be the path of the cans 23 along the slide bars 21 and 22 as is clearly shown in dotted lines in said Fig. 13. The shaft .36 is adapted to stand -normally in such position as to cause the stops 37 to stand in operative stopping position, means being provided for displacing the stops at the time that the cans 23 are to be moved forward.

rality of stops This vmeans for roc-king the shaft 36 for moving the stops 37 downwardly comprises an arm 3S iixedly mounted upon the shaft 36, boing pivotally connected at its upper end with a lever 39 which in turn is pivotally connected at its lower end with one end of a link 40. The opposite end of the link 40 is pivotall'y connected with the end of a laterally extending arm 41 which is swingingly mounted upon the lower end of a rock shaft 43 which is revolubly mounted upon the frame work 20 (see Fig. 1). The rock shaft 42 is provided at its upper end with a short laterally-extending arm 43 which extends across the slideway, in the construction shown the arms 43 and 41 being formed integrally with the rock shaft 42. As is best shown in Fig. 15, the end of the linger 34 is turned at right angles and so disposed as to extend downwardly when the sleeve 29 is in position for holding the arms28 in horizontal position extending across the slideway. The position of the arm 43 is such that when the sleeve 29 is turned to bring the arms 28 into engagement with the cans for effecting a forward movement thereof, the finger 34 is turned downwardly in rear of the arm 43. Accordingly, when they sleeve 29 is movedforward, the arm 43 is swung outwardly, serving to carry the link 40 toward the left in Fig. land to move the arm 38 upwardly, serving to move the stops 37 downwardly out of operative position. nasmuch as the finger 34 is mounted upon the sleeve 29 rather than upon the bar 27, the stops 37 are moved out of operative position before the forward movement of the bar 27 begins, this result being effected by reason of the slotted connection between the sleeve 29 andthe bar 27. The upward movement of the arm 38 by reason of the movement of the lower end of the lever 39 toward the left in Fig. 1 is effected by reason of the connection of the upper end of the lever 39 with a swingingly mounted arm 44 which is hereinafter described. As will be readily understood, when the nger 34 passes out of engagement with the forward end of the arm 43 in the forward movement of the finger 34, the 40 is. freed for movement again toward. the right for returning the stops 37 to operative position before the cans y23 are brought tothe end of their forward movementl through the medium of the sleeve 29 anl the bar 27.

The slide meansfor supporting the covers ieul of the cans comprises an inclined bar along which the covers are `adapted to roll, as is shown in Fig. 1, together with two bars 46 and 47 spaced a distance apart one above the other at one side of the bar 45 and a bar 48 at the opposite side of the bar 45. The arrangement of the bars is such that a cover 49 is held snugly in position so as to roll freely along the shdeway.

T hemeans t'or cont-rolling the movement of a cover 49 along the slideway comprises a rock` shaft 50 revolubly mounted in the frame work 2()` at one side of the lslideway, being provided with a plurality of arms 51 which extend laterally therefrom, the outer ends ot' the arms 51 being turned to extend upwardly, as is bestl shown in Fig. 1. The arm 44 which is pivotally connected with the lever 39 as above described. is tixedly mounted upon the rock shaft 5() whereby upon a movement of the lever 39 in clockwise direction in said Fig. 1 the shaft 50 is turned in counterclockwise directin, serving to swing the arms 51 upwardly. A second rock shaft v52 is revolubly mounted di- -rectly above the rock shaft 50, being connected thereto .by means of a vertically dis-` posed link 53 connecting the outei ends of bars 54 and 55 carried by the shafts 50 and 52 respectively (see Fig. 5). By the -use of the link 53 and the arms 54 and 55, the shafts 50 and 52 are caused to rock in unison as will be readily understood. The rock shaft 52 is provided with a plurality of arms 56 extending laterally therefrom, the outer ends of the arms being turned down- 'wardly as is clearly shown in Fig. -1.

lVhen the arm 43 is moved outwardly through the medium of the finger 34 carried by the sleeve 29 upon an operative movement of the sleeve 29 for moving one or more ofthe cans 23 forward along the first described slideway. the lever 39 is given a movement in clockwise direction in Fig. 1 as above described serving to move the arm 44- in connterclockwise direction in said figure. thereby moving the arms 51 and the arms56 upwardly. As is'clearly shown in Fig. 4, when the arms 56 are in their lowered position thev serve as stops for limiting the forward movement of the covers 49, while the arms 51 are disposed beneath the covers 49 slightly in rear of the centers of the covers. Upon the upwaril movement of the arms 51 and 56, the covers are free to roll along the bar 45 by reason of the displacenient of the arms 56, and are given a forward impulse by engagement of the arms 5l therewith. lVhen the finger 34 passes out of engagementl with the arm 43, the arms 51 and 56 are freed to move downward again by gravity, serving to move the stops 37 upward and to move the arm 43 inwardly into the position shown in Fig. 1, this being effected prior to the end of the forward movement of the cans 23 and the covers 49 whereby the stop devices 37 and 56 are returned to operative position in time to stop` the cans and covers at the end of a one-step movement.

The means for washing the cans in their intermittent movement through the machine comprises a plurality ot spraying devices 57, 58, 59, 60 and 61 arranged underneath the slideway along which the cans move, the disposition o these spraying devices being such as to underlie the cans 23 in the positions the cans occupy when stopped by the stop devices 37, as shown by the can near the receiving end of the machine in Fig. 6. Adjacent to the spraying devices above mentioned. l have provided valves 62, 63, 64, and 66, each of which is provided with a spring-pressed arm 67 which extends inwardly into the path of the cans 23 moving along the slideway. The position of the arms 67 is such (see Fig. 1U) as to be displaced. from normal position by engage ment with the side of a can during the time when the can is at rcst at the end ot a step of its forward movement. Upon the. opening of the several valves, the spraying dcvices are rendered effective for delivering the desired cleaning agency to the interiors of the several cans, as hereinafter described.

The valve 62 is connected directly with the,

spraying device 57 by the means ot' a short pipe 68 (sce Fig. 6), the receiving end of the valve being connected by means of a pipe 69 with a steam-header 70 as is best shown in Fig. 2, whereby the spraying device 57 is effective for delivering steam to the interior of a can when a can is moved into operative position thereover. The valve 63 is connected by a short pipe 71 with the adjacent spraying device 58; the receiving end of the valve 63 being connected with any suitable source of cold water under pressure through the medium of a pipe 72. The valve 64 is interposed in a line of piping 73 leading from the header to a feeder 74 located. in a tank 75 adapted to cont-ain a soda solution. The feeder 74 is of any approved type, being preferably of the type disclosed in my application, Serial No. 412,316 filed September 23. 1920, cold water being delivered to the feeder through a pipe 76. and the soda solution being forced from the feeder through a line of piping 77connected with the spraying device 59 as is shown in Fig. 6. The valve 65 is interposed in a line of piping 78 connected with the header 70 and leading to a tank 79 located within the soda tank 7 5 (see Fig. 3). The tank 79 is provided with cold water from any suitable source by means of a pipe 80, a float device 81 ot any approved type being provided for controlling the delivery of water thereto. The arrangement is such that upon the delivery of steam to the tank 79 through the line of piping 78, hot Water is forced outwardly through the pipe 82 which is connected with the spraying device 60, as is shown in Fig. 6. The valve 66 is connected by means of a pipe 83 with the steam header 70, and by means of a pipe 84 with the spraying device 61. An additional spraying device 85 is shown in Fig. 2, comprising pipes arranged at opposite sides of the slideway and provided with perforations on their inner faces. An additional valve 86 is provided for controlling the operation of the spraying device 85, the valve 86 being operated by a springpressed arm 87 connected by a link 88 with the arm 67 of the valve 65. The valve 86 is interposed in a line of piping 89 leading from the steam header 70 to a. feeder 90 located within the tank 75 near its rearward end, the delivery end of the feeder 90 being connected by means of a pipe 91 with the spraying device 85, as is clearly shown in Fig. 2. Cold wateris delivered to the feeder 90 through a pipe 92 from any suitable source of supply. It will thus be' seen that a can in moving through the machine receives first a supply of steam under pressure from the spraying device 57; then after an interval a supply of cold water from the spraying device 58 then a supply of soda solution from the spraying device 59; then a supply of hot water on its interior and soda solution on its outer face from the spraying devices 60 and 85; and finally a supply of steam on its in terior from the spraying device 61.

At the receiving end of the machine (see Fig. 2), a drain tray 93 is provided serving to collect and deliver to any suitable point the major portion of the contents of the cans as they come for the cleaning operation. As will be readily understood, the steam delivered by the spraying device 57 serves to melt from the walls of the can any milk or cream or other product which may be frozen on the inner face of the can. This feature, however, forms'no part of my present invention.

The tank 75 is open at its top so as to receive the water and the soda .solution draining from the cans in'their movement through the machine after the spraying de vice 57 is passed. In the construction shown, an auxiliary drain receiving device 94 is provided, connected by av pipe 95 with the tank 75, serving in effect as an extension of the tank 75.

Means is provided for drying the cans after they pass the spraying device 6-1. This means comprises a fan 96 of any approved type operated by a steam turbine 97 of any7 approved type operated by steam delivered through a pipe 98 from any suitable source. The fan 96 forces air into a tubular chamber 99, within which' the air is heated by 4a steam coil 100 of any approved ty e (see Fig. 5), the coil 100 being beate by the exhaust steam fromv the recense turbine '97. At its forward end, the tubular member 99 is provided with two pipes 101 and 102 which open below the slideway in position to deliver hot air into the cans 23 in their final stop positions on the slideway, this hot air serving to dry the cans, whereby the cans are delivered in thoroughly cleansed and sterilized condition.

For cleaning the covers moving along the slideway beside the cans 23, I have provided a spraying device 103 of any approved type connected by means of a pipe 104 with the spraying device 59 and adapted to deliver to the spraying devine 103 a portion of the soda solution carried by the pipe 77. A second spraying device 105 is pro- -vided, connected by a pipe 106 with the spraying device 60. the pipe 106 heilig adapted to deliver to the spraying device 105 a portion of the hot water carried by the pipe 82. A third spraying device 107 is also employed, being provided with steam from the exhaust of the turbine 97, through the medium of a line of piping 108. After the covers have been subjected to the action of the steam delivered by the spraying device 107, they receive at the next stop a supply of hot air from the tubular member 99, such air being delivered by means of a pipe 109, as is best shown in Fig. 5.

The means for turning the cans from their inverted position into position upon a platform 110 at the delivery end of the machine, as is shown in Fig. 9, comprises a rounded member located a short distance in advan'rev of the forward end of the slideway for. the cans, such rounded member being disposed at a short distance above the level of the end of the slideway. In the construction shown, the rounded turning member is in the form of a pair of metal straps 111 which are secured at one end to the frame work 20 oppositevthe end of the slideway. As is best shown in Fig. 9,'the straps or bars 111 are bent downwardly away from the slideway, and then extend forwardly and upwardly, being turned downwardly again and secured at their lower ends to the frame work. By reason of the depression provided by the downwardly bent portion of the bars 111, the cans 23 are adapted to tip for- Wardly'as they slide from the end of the slideway, the side of' the can being brought into engagement with the rounded and elevated portion of the bar 111. I have found in practice that when a can is brought into engagement with my improved turningdevicein the course of a normal forward movement of a can under the influence of the can-forwarding means above described,

the can is caused toroll about the rounded tially upright position. For receiving the can 23, lfor holding it against tipping laterally, and for completing the turning movement of the can, I have provided a cross bar 112 which is fixedly mounted at the upper ends of a pair of arms 113 and 114 (see Fig. 8), pi'votally mounted upon the frame work 2O by means of pivot pins 115. The lower ends of the arms 113 and 114 are connected by a cross bar 11G which is of such a weight as to hold the cross bar 112 normally in the position shown in Fig.' 9. When the can 23 is brought in contact with the cross bar 112, the cross bar is moved forwardly as is shown in dotted lines in Fig. 9, serving to bring the cross bar 116 into contact with a stop 117 which serves to limit the forward movement of the cross bar 112. As is best shown in Fig.- 7, the central portion of the cross bar 112 is curved forwardly, to conform substantially to the curvature of the side of a can, so as to hold the can from-tipping laterally. By the time that a can is delivered in upright position upon the platform 110 as above described, two or three covers will be waiting in a receptacle 118 at the lower end of the slideway for the covers. Inasmuch as the receptacle 118 is of suiiicient width to receive only one coverat its end portion, it will be understood that the covers will be arranged in order awaiting delivery of the corresponding can. By the provision of this arrangement,l the operator is enabled to have the proper cover in his hand ready to insertit in the upper end of a can immediately upon the delivery of the can,

-whereby no time is lost, and the cans are delivered in the most expeditious manner.

By the use of my construction as above described,'I am enabled to clean thoroughly and completely a great number of cans within a very shortQtilne, this result being effected with a minimum of care and attention on the part of the operators, and with a minimum expenditure of materials and labor. If it is desired a single can and its cover can be run through themachine without waste, since the spraying devices are operated by engagement with the cans themselves. By having the steam for the header provided from the coil 100, which is the preferred method, I am enabled to use the steam for three operations,namely, the operation of the turbine 97, the heating of the air for drying purposes, and the direct application of the steam upon the cans and covers.

While I have illustrated and described the preferred form of construction for carrying my invention into effect, this is capable of variation and modification without departing from the spirit of the invention. I, therefore, do not wish to be limited to the precise details of the construct-ion set forth,

but desire to avail myself of such variations and modifications as come within the scope of the-appended claims.

Having described my invention,what claimv as new and desire to secure by Letters Patent, is V 1. A washing machine comprising a slideway; means for giving a plurality of cans a step-by-step movement along said slide-- Way 1n inverted position thereon; stops for holding the cans against forward movement at the end of successive steps; means automatically actuated just .before each Step-by-step movement for displacing said stops and for returning the stops to operative position before the end of the step; and means acting on said cans in their forward movement for cleaning the-cans, substantially as described.

2. A washing machine comprising a slideway; means for giving a plurality of 'cans a step-by-step movement along said slideway in inverted position thereon; stops for holding the cans against forward movement at the end of successive steps; means for displacing said stops for permitting forward movement of the cans and for returning the stops to operative position before the end of the ste ;-and spraying devices spaced along said s ideway 1n operative position with respect to the cans in engag ment with said stops; substantially as described. A

3. A washing machine comprising a slideway; means for giving a plurality of-cans a step-by-step movement along said slideway in inverted position thereon; stops for holding the cans againstforward movement at the end of successive steps; means for displacing said'stops for permitting forward movement of thev cans; spraying devices spaced along said slideway in operative position with respect', to the cans in engagement with said stops; valves controlling the operation of said sprayingl devices; and valve opening means held'in operative position by cans in engagement 'i with said stops, substantially as described.

4. A washing machinecomprisinga slideway; means for giving a plurality of cansa step-by-step movement along said slideway in Inverted position thereon; stops for holding the cans against forward movementat the end of successive steps; means actuated by`said can-forwarding means for. displacing said stops for permitting forward movevment of the cans and for returning the stops to operative position before the end of the step; and means acting onv said cans in their step-by-step forward movement for cleaning the cans, substantially as described.

5. A washing machine comprising a slideway; means for giving a plurality of cans a step-by-step lmovement along Said slideway in inverted position thereon; stops for holding the cans against forward movement at the end of successive steps; manually operated means for actuating said can-forwarding means; means actuated by said manually operated means for displacing said stops for permitting the forward move.- ment 0f the cans; and means acting on said cans in their step-by-step forward movement for cleaning the cans, substantially as described.

6. A washing machine comprising a slideway; manually operated means for giving a plurality of cans a step-by-step movement along said slideway in inverted position thereon; stops for holding the cans against forward movement at the end of successive steps; means actuated by said manually operated forwarding means for displacingr said stops for permitting the forward movement of the cans; and means acting on said cans in their step-by-step forward movement for cleaning the cans, substantially as described.

7 A washing machine comprising a slideway; means for giving a plurality of cans a step-by-step movement along said slideway in inverted position thereon; stops for holding the cans against forward movement at the end of successive steps; manually operated means for actuating said can-forwarding means, being adapted to have a limited movement independently of the canforwarding means at the start of its operative stroke in either direction; means actuated by said manually operated means at the start of its operative forward stroke for displacing said stops for permitting the forward movement of the can; and means acting on said cans in their step-by-step forward movement for cleaning the cans, substantially as described.

8. A washing machine comprising a slideway; av bar slidably mounted above said slideway at one side thereof; means carried by said bar for engaging a plurality of cans and giving them a step-by-step movement along said slideway in inverted position thereon; stops for holding the cans against forward movement at the end of successive steps; a sleeve slidably mounted on said bar; means for limiting the longitudinal movement of said sleeve on said bar whereby the sleeve is adapted to actuate said canmoving means; means actuated by longitudinal movement of said sleeve for displacing said stops for permitting the forward movement of the can; and means acting on said cans in their step-by-step movement for cleaning the cans, substantially as described.

9. A washing machine comprising a slideway; a bar slidably mounted above said slideway at one side thereof; means carried by said bar for engaging a plurality of cans and moving them a step at a time along said slideway in inverted position thereon; stops for holding the cans against forward movement at the end of successive steps; a

sleeve slidably mounted on said bar; means for limiting the longitudinal movement of said sleeve on said bar whereby the sleeve is adapted to actuate said can-moving means; means actuated by a longitudinal movement of said sleeve independently of said bar for displacing said stops prior to the actuation of said can-forwarding means thereby; and means acting on said cans in their step-bystep movement for cleaning the cans, substantially as described.

10. A washing machine comprising a slideway; means for giving a plurality of cans a step-by-step movement along said slideway in inverted position thereon; a rock shaft extending along said slideway; a pluralityof stops carried by said rock shaft in spaced relation therealong adapted to hold the cans against forward movement at the end of successive steps; means acting on said shaft for displacing said stops for permitting forward movement of the cans; and means acting on said cans in their stepby-step movement for cleaning the cans.I substantially as described.

11. A washing machine comprising a slideway; means for giving a plurality of cans a step-by-step movement along said slideway in inverted position thereon; stops for holding the cans against forward move-` ment at the end of successive steps; an arm movably mounted transversely of said slideway in position to be engaged by means on the first said means; means actuated by the displacement of said arm for moving said stops out of operative position; and means acting on said cans in their forward movement for cleaning the cans, substantially as described.

12. A washing machine comprising a slideway; means for giving a plurality of cans a step-by-step movement along said slideway in inverted position thereon; a

rock shaft extending alon said slideway; a-

plurality of stops carried y said rock shaft in spaced relation therealong adapted to hold the cans against forward movement at the end of successive steps; an arm pivotally mounted adjacent to said slideway and extending transversely thereof in position to be engaged by means on the first said means; operative connections between said arm and said `rock shaft for causing a dis-y cans a step-by-step movement along said" slideway in inverted position thereon; stops for holding the cans against forward movement at the end of successive steps; an arm pivotally mounted adjacent to said slideway and extending transversely thereof in position to be engaged by means on the first said vmeans; operative connections between said slideway; means for giving a. plurality of cans a step-by-step movement along said slideway in inverted position thereon; stops for holding the cans against forward movement at the end of successive steps; slidably mounted means for actuating said cau-moving means; an arm pivotally mounted adjacent to said Vslidably mounted means and extending transversely; operative connections between said arm' and said stops for causing a displacement of the stops upon a forward swinging movement of said arm; a linger carried by said slidably mounted means adaptedto be brought into engagement with said arm for swinging it upon a forward movement of the slidably mounted means; and means acting on said cans in their step-by-step movement for cleaning the cans, substantially as described.

15. A can washing machine comprising an inclined slideway; means for giving a plurality of cans a step-by-step movement down said slideway in inverted position; stops for preventing the cans from moving downwardly at each actuation beyond the normal desired positions; means for displacing `said steps for permitting forward movement of said cans; and means acting on said cans in their step-by-step movement for cleaning the cans, substantially as described.

16. A can washing machine comprising a slideway arranged to support a plurality of covers in position to roll on edge therealong; upwardly swingable means for giving a cover a rolling movement along the slideway; stop devices placed along the slideway for stopping a cover at intervals in its movement therealong; and means acting on said covers in their movement through the machine for cleaning the Covers, substantially as described.

17. A can washing machine comprising a slideway arranged to support a plurality of covers in osition vto roll on edge therealong;

kstop devices arranged in yspaced relation along said slideway for limiting successive movements of a cover; an arm pivotally mounted below said -slideway in position to be moved upward into engagement with a cover in rear of its central portion atV one of the stop positions of the cover; means for moving the arm upwardly for effecting a forward movement of the cover; and means acting on said covers in their movement through the machine for cleaning the covers, substantially as described.

18. A can washing machine comprising a slideway arranged to support a plurality of covers in position to roll on edge therealong; stop devices arranged in spaced relation along said slideway for limiting successive forward movements of a plurality of covers along the slideway; a rock shaft revolubly adjacent to said slideway; a plurality of arms carried by said rock shaft in position to be moved upward into engagement with the covers at said stop positions for effecting forward movement of said covers; and means acting on said covers in their forward movement through the machine for cleaning the covers, substantially as described.

19. A can washing machinecomprising a slideway arranged to support a plurality of covers in position to roll on edge therealong; means for giving a cover a rolling movement along the slideway; an arm pivotally mounted adjacent to said slideway adapted to be moved into position to stop a cover moving along said slideway;and means acting on Said covers in their movement through the machine for cleaning the covers, substantially as described.

20. A can washing machine comprising a slideway arranged to support a plurality of covers in position to roll on edge therealong; means for giving a cover a rolling movement along the slideway; a rock shaft revolubly mounted adjacent to, said slideway; a plurality of arms carried by said rock shaft in spaced relation thereon adapted to be moved into position to stop a plurality of covers moving along the slideway; and means acting on said covers in their movement through the machine for cleaning the covers, substantially as described.

.21. A can washing machinecomprising a slideway arranged to support a plurality of,

vcoversin position to vroll on edge therealong; an arm `pivotally mounted 'adjacent to said slideway; means for moving said arm into position to stop a cover moving along said slideway; a second arm pivotally mountedadjacent to said slideway; meansl for moving said second arm into position to engage 1n rear of its center a cover held by sald first named arm; meansfor moving said arms in unison for withdrawing said first named arm and giving said second arm v at the same time an operative stroke; and means acting-on said covers in their movement through the machine yfor cleaning the covers, substantially as described.

22. A can washing machine comprising an Ainclined slideway arranged to support a plurality of covers in position to roll on lao edge therealong; stop means for limiting the movement of the covers; means for movingv said` stop means out of operative posi- -movement through the machine for cleaning the covers, substantially as described.

23. A can washing machine comprising a slidcway; an arm pivotally mounted adjacent to said slideway adapted to be moved into the path of a cover supported on said slideway in position to roll on edge therealong; an arm for giving said cover a rolling movement along said slideway; a second slideway adjacent to said first named slideway; a stop device pivotally mounted adjacent to said second slideway adapted to be'moved into the path of a can supported in inverted position thereon; means for cleaning said cans and said covers; and a lever operatively connected with said arms and said stop device for moving the same in unison with respect to said slideways, substantially as described.

24. A can Washing machine cpmprising a slideway; an arm pivotally mounted adjacent to said slideway adapted to be moved into the path of a cover supported on said slideway in position to roll on edge therealong;.a second slideway adjacent to said first named slideway; a stop device pivotally mounted adjacent to said second slideway adapted to be moved into the path lof a can supported in inverted position thereladjacent thereto; a plurality of arms carried by said rock shaft in position to be moved upwardly into engagement with a cover on edge on the slideway for giving the cover a forward movement; a second rock shaft revolubly mounted adjacent to the slideway; a plurality of stop arms carried by said 'second rock shaft in position to limit the movement of a cover along said slideway; means for cleaning said covers during their movement through the machine; and means for turning said rock shafts in unison for moving said stop arms upwardly out of operative position and for giving such first named arms an operativev upward movement for causing a forward movement of the covers supported by said slideway, said shafts being adaptedto be brought back to normal position by the weight of 'said arms, substantially as described.

In testimony whereof I have signed my name to this specification in the presence of two subscribing witnesses.

HARRY D. LATHROP. `Witnesses:

JOSHUA R. H. Porre, W. H. DE BUSK. 

